问题描述：
1 Jenny______as an engineer_____half a year.
A has worked;since B works;since C worked;for D has worked;for
2 Susan hasn’t written any postcards yet.I haven’t written them,either.(保持原句意思)
Susan hasn’t written any postcards yet._____ _____ I.答案Neither have
3How long has he _____there?
A left B been C gone D was
A has worked;since B works;since C worked;for D has worked;for
2 Susan hasn’t written any postcards yet.I haven’t written them,either.(保持原句意思)
Susan hasn’t written any postcards yet._____ _____ I.答案Neither have
3How long has he _____there?
A left B been C gone D was
问题解答：
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